Marble analysis, 52.969
Fragment of a relief: male head
White marble
Marble origin: Paros (Paros-Choriodaki) (Greece) or Marmara (Turkey)?
Mineralogy: calcite
Texture: heteroblastic
Maximum grain size (MGS): 2.10 mm
δ18OV-PDB: -0.97 ‰
δ13CV-PDB: 3.52 ‰
Cathodoluminescence color: dark blue
Cathodoluminescence intensity: weak
Cathodoluminescence distribution: homogeneous
The isotopic values are situated in the Paros and Marmara fields, two marbles with blue luminescence. It seems most probable that this statue was carved from a marble of Paros-Choriodaki, but we do not exclude an origin of Marmara.
D. Decrouez & K. Ramseyer (1998, 2016)
52.969; Fragment of a relief: male head 
Microfacies under transmitted light. Long side of photograph: 3.3 mm 
Microfacies under polarized light. Long side of photograph: 3.3 mm 
Cathodomicrofacies, exposure time 120 sec. Long side of photograph: 3.3 mm 